Amboise, France - October 31, 2013: The Waywiser. Moving forward, the wheel of the wheelbarrow drags a horizontal rack plate with holes in it. At each

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Amboise, France - October 31, 2013: The Waywiser. Moving forward, the wheel of the wheelbarrow drags a horizontal rack plate with holes in it. At each revolution of the wheel, a ball falls into a box. The number of balls X the circumference of the wheel = distance covered. This is the first distance measuring device.

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Size: 4624px × 3071px
Location: Chateau de Clos Luce, Amboise, France
Photo credit: © Barbara Ash / Alamy / Afripics
License: Royalty Free
Model Released: No

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